#include <stdio.h>
int main()
{
	int r, z, h;
	float x;


	printf("input x:");
	scanf("%f", &x);
	printf("input r:");
	scanf("%d", &r);
	printf("input h:");
	scanf("%d", &h);
	z = x * r * r * h;
	printf("%d*%d*%f*%d==%d\n", r,r, x,h, z);

	return 0;
}